Eren Jeager is Kazuto's best friend, but both of them are stuck inside the game Sword Art Online, which introduces Eren to a hidden power inside the game. I do not own Attack On Titan, Sword Art Online, or any images I use in this story.
A brown hair boy was walking on a sidewalk as he was heading towards someone's house. As he was heading there, he look to his left and saw a couple of kids playing on their yards with a ball. The boy smile as he walked up to the front door. He knocked on it as someone then answers it. "You made it!" a black hair boy told him. The brown hair nodded and said "I promise that I'll play it with you on the first day, didn't I?"
This boy's name was Eren Jeager, a boy from a different time.
Flashback
'This is freedom' a voice said as there were only clouds with only a little brown hair boy standing there. He put out his arms and said "This is freedom!"
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While he was in the clouds, war was going on in the real world. The man known as Eren Jeager had released the rumbling, planning on destroying all of humanity. By releasing the rumbling, he unleashed the colossal titans that were hidden in the walls that kept the people of Paradise trapped like cage animals.
Eren had gone through so much to get where he was. Many people died for him, he learn the truth about the world outside the walls, he even betray his brother to get to his goal. The colossal titans were crushing everything underneath their foots, destroying civilizations. People had to run as far away from the feet of the colossal titans, they ran until they couldn't no more, stopping at the edge of a cliff.
Many people accepted their death and embrace the marching of the colossal titans. Many of these people thought there was no hope. But they were wrong. There were still people trying to go against Eren Jeager. A group that contain people from both Paradis and Marley working together to find a way to stop him.
The little Eren Jeager continue to embrace his freedom as he said "We finally made it. This view, this is it. Right, Armin?" He turned around and saw a blond hair teen boy in a place where he talked to all of the Eldians. "Eren" Armin told him as everything went black for the young founder.
"To get freedom, you must take it from others" Eren announce to his friends who were trying to stop him. "I won't take it from you guys, you are all free" Eren told his friends. "I have no plans on stopping the rumbling."
"Then why did you brought us here!?" Armin shouted at his friend. "So I can speak to you and tell you there's no need for us to speak" Eren told him. "If you wish to stop me from doing this, you will have to stop me from breathing. You are free to try."
And try they did, as they finally confronted Eren in his founding titan form. "Eren, I'm asking you one more question you're not going to like. How exactly are you free? And you will answer me, once I drag you out" Armin told him as they launch an attack on Eren. Eren wasn't going down so easy as he send out many of the former titan shifters titans to attack his old friends.
Through difficult times, they were able to defeat Eren. They didn't have a long time to celebrate as Eren was still alive and the creature that connected to him was still alive, being held down by Reiner. Mikasa was the one who went inside his titan mouth and decapitate him.
You think the story of Eren Jeager would end there, but that was not true.
End of Flashback
"I can't believe in the last second you were able to buy a copy of Sword Art Online" Kazuto told his friend. Eren nodded and said "I had to do multiple jobs to earn enough money for this." They were heading to Kazuto's room as they saw a black hair girl walking across from them. "Suguha, look who's here" Kazuto said as the black hair girl turn to their direction. "Oh, hey Eren. It's nice to see you" she told him.
Kazuto and Suguha were raise as siblings despite actually being cousins. They were the first people Eren met when he woke up in this new world. "It's nice to see you too" Eren told her as he notice the outfit she was wearing was her kendo outfit. "You're going to do some kendo practice?" Eren asked her. "Yup, trying to practice for a new tournament that's coming up" Suguha told him.
"That's a lie. She's trying to get better so she can beat you in her rematch against you" Kazuto told him. "Kazuto!! Don't lie to Eren about me!" Suguha said as she smacked him in the head with her kendo stick. "Ow, you didn't have to do that!" Kazuto shouted at her. Eren chuckled as he watch his two friends argue. 'I miss this feeling. It's been so long' Eren said in his head as he remember something.
"You are now truly free, Eren Jeager" a little blond hair girl told him before he woke up in this new world. That little girl was the founder Ymir, who met Eren before he pass on from the world of the living.
"You ok Eren?" Kazuto asked him as that time Eren was just staring off to space. "I'm fine, let's play that new game" Eren told him. Eren hold his Nerve Gear in his hands as he looked at it. When he went to Marley, he thought the technology was advance, but this gear was way more advance than what Marely had. 'I'm still not use to these things' Eren said in his head. He put it on as he said "Link Start."
